A kind of expansion sleeve type steel ball type torque limiter type coupling

Abstract

The utility model discloses a kind of expansion sleeve type steel ball formula torque limiter type couplings, including rotating inner body, bearing, first connecting ring, connecting flange, steel ball mounting ring, first steel ball placing groove, steel ball, convex ring, second steel ball placing groove, shift flange, third steel ball placing groove, butterfly spring, positioning plate, first keyway, connecting key, torque value dial, adjusting bolt, inner hole, connecting plate, first cone, first connecting hole, first gap, first claw, second connecting ring, second claw, plum-blossom type elastomer, first connecting bolt, second cone, second connecting hole, second gap, gland ring, second connecting bolt and third connecting bolt.The utility model passes through the skidding between connecting flange and shift flange when overloading, play the role of protecting equipment;Torque value dial is used to display torque value, without conversion, so that the numerical value of torque value can be accurately obtained, improve the use performance of coupling.

Description

Technical Field

[0001] This utility model relates to the field of couplings, and in particular to a shrink-fit type steel ball torque limiter coupling. Background Technology

[0002] Couplings are important components used to transmit torque in mechanical transmissions. Existing couplings are prone to overload, which can damage the motor (burn out the motor). Moreover, the torque values ​​of coupling products are not standardized and lack clear standards. The torque value dials are not scientifically designed, as they are percentages rather than specific torque values, requiring conversion and increasing the workload of workers.

[0003] Therefore, improvements must be made to address the aforementioned deficiencies. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a shrink-fit type steel ball torque limiter coupling, thereby solving the problems in the background art.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0006] A type of expansion sleeve-type steel ball torque limiter coupling includes a rotating inner body. A bearing is fitted on the left side of the rotating inner body. A first connecting ring is located at the left end of the bearing. The right end of the inner wall of the first connecting ring is fitted onto the left end of the outer wall of the bearing. A connecting flange is located at the right end of the bearing. The left end of the inner wall of the connecting flange is fitted onto the right end of the outer wall of the bearing. A steel ball mounting ring is located on the rotating inner body to the right of the connecting flange. Multiple first steel ball placement grooves are provided on the outer wall of the steel ball mounting ring, and steel balls are placed in these grooves. A protruding ring is located on the right end face of the connecting flange. Multiple second steel ball placement grooves that mate with the steel balls are provided on the right end face of the protruding ring. The left end of each steel ball is located within a second steel ball placement groove. A displacement flange is fitted onto the rotating inner body on the right side of the flange. The inner side of the displacement flange has a third steel ball placement groove that mates with the outer end of the steel ball. A butterfly spring placement groove is provided on the right end face of the displacement flange, and a butterfly spring is placed within the groove. A positioning plate is provided on the right side of the displacement flange. A first keyway is provided on the outer wall of the right end of the rotating inner body. The positioning plate has a connecting key that mates with the first keyway. A torque value scale is provided on the right side of the positioning plate, and a first bolt mounting hole is provided on the torque value scale. Multiple second bolt mounting holes are evenly distributed on the positioning plate. An adjusting bolt is provided on each of the first bolt mounting holes, and the left end of the adjusting bolt connects to one of the second bolt mounting holes. The rotating inner body is equipped with… The rotating inner body has an inner hole that extends through it from left to right. A first conical hole is located at the right end of the inner hole, with the first conical hole having a left-smaller, right-larger structure. A connecting plate is located on the right side of the torque value dial. A first cone that mates with the first conical hole is located at the left end of the connecting plate. A first connecting hole extending to the left end face of the first cone is located on the right end face of the connecting plate. Multiple first notches extending to the outer end face of the first cone are evenly distributed on the inner wall of the first connecting hole. Multiple circumferentially arranged first claws are located on the left end face of the first connecting ring. A second connecting ring is located to the left of the first connecting ring. Multiple second claws that mate with the first claws are located on the right end face of the second connecting ring. A plum blossom-shaped elastic joint is provided between the first connecting ring and the second connecting ring. The body, the plum blossom-shaped elastomer, includes a circular main body and a plurality of protrusions evenly distributed around the periphery of the circular main body. The protrusions are distributed between the first claw and the second claw. A plurality of first connecting bolt holes are evenly distributed on the left end face of the first connecting ring. A plurality of second connecting bolt holes corresponding to the first connecting bolt holes are provided on the left end face of the connecting flange. First connecting bolts connecting to the second connecting bolt holes are provided on the first connecting bolt holes. A second cone is provided on the left end face of the second connecting ring. A second connecting hole penetrating to the left end face of the second cone is provided on the right end face of the second connecting ring. A plurality of second notches penetrating to the outer end face of the second cone are evenly distributed on the inner wall of the second connecting hole. A pressure cap ring is fitted onto the second cone.The right end face of the connecting plate has a circumferential array of multiple third connecting bolt holes. The right end face of the rotating inner body has multiple fourth connecting bolt holes that mate with the third connecting bolt holes. Second connecting bolts are installed in the third connecting bolt holes to connect with the fourth connecting bolt holes. The right end face of the second connecting ring has multiple fifth connecting bolt holes. The right end face of the pressure ring has a sixth connecting bolt hole that mates with the fifth connecting bolt holes. Third connecting bolts are installed in the fifth connecting bolt holes to connect with the sixth connecting bolt holes.

[0007] Furthermore, the inner wall of the pressure ring is provided with a second conical hole that mates with the second cone.

[0008] Furthermore, an elastic retaining ring is provided on the outer wall of the left end of the rotating inner body.

[0009] Furthermore, an elastic retaining ring mounting groove is provided on the outer wall of the left end of the rotating inner body, and the elastic retaining ring is mounted on the elastic retaining ring mounting groove.

[0010] Furthermore, the first keyway consists of two keyways located at corresponding ends on the outer wall of the rotating inner body, and the connecting key consists of two keyways that cooperate with the two first keyways.

[0011] Furthermore, the outer end of the left end face of the positioning plate is a rightward inclined surface.

[0012] Furthermore, there are twenty-four second bolt mounting holes.

[0013] Furthermore, the steel ball mounting ring is integrally formed with the rotating inner body.

[0014] The beneficial effects of this utility model are:

[0015] By employing the above technical solution, the steel balls are placed in the first, second, and third steel ball placement grooves in a coordinated manner. Under overload conditions, slippage occurs between the connecting flange and the displacement flange, causing the equipment to stop rotating and thus protecting it. Furthermore, the torque value is displayed on a torque scale with standardized and clearly defined settings. The scientifically designed torque scale provides precise torque values ​​without the need for conversion, ensuring accurate torque measurement and improving the coupling's performance. Attached Figure Description

[0016] Figure 1 This is a front view structural schematic diagram of an embodiment of the expansion sleeve type steel ball torque limiter coupling of this utility model;

[0017] Figure 2 for Figure 1 Schematic diagram of the sectional structure of the middle AA section;

[0018] Figure 3 This is a right-side structural schematic diagram of an embodiment of a shrink-fit type steel ball torque limiter coupling according to the present invention;

[0019] Figure 4 This is a three-dimensional structural diagram of an embodiment of a shrink-fit type steel ball torque limiter coupling according to this utility model. Figure 1 ;

[0020] Figure 5 This is a three-dimensional structural diagram of an embodiment of a shrink-fit type steel ball torque limiter coupling according to this utility model. Figure 2 ;

[0021] Figure 6 This is a three-dimensional structural diagram of the rotating inner body in one embodiment of a shrink-fit type steel ball torque limiter coupling of the present invention.

[0022] Figure 7 This is a three-dimensional structural diagram of the plum blossom-shaped elastomer in one embodiment of a shrink-fit type steel ball torque limiter coupling of this utility model;

[0023] Figure 8 This is a three-dimensional structural diagram of the connection between the connecting flange, the steel ball, and the rotating inner body in one embodiment of the expansion sleeve type steel ball torque limiter coupling of this utility model.

[0024] Figure 9 This is a three-dimensional structural diagram of the connecting flange in one embodiment of a shrink-fit type steel ball torque limiter coupling of this utility model;

[0025] Figure 10 This is a three-dimensional structural diagram of the positioning plate in one embodiment of a shrink-fit type steel ball torque limiter coupling of this utility model;

[0026] Figure 11 This is a three-dimensional structural diagram of the connecting plate and the first cone in one embodiment of a shrink-fit type steel ball torque limiter coupling of this utility model;

[0027] Figure 12 This is a three-dimensional structural diagram of the first connecting ring in one embodiment of a shrink-fit type steel ball torque limiter coupling of the present invention;

[0028] Figure 13 This is a three-dimensional structural diagram of the second connecting ring in one embodiment of a shrink-fit type steel ball torque limiter coupling of the present invention;

[0029] Figure 14 This is a three-dimensional structural diagram of the pressure ring in one embodiment of a shrink-fit type steel ball torque limiter coupling of this utility model;

[0030] Figure 15 This is a right-side structural schematic diagram of the displacement flange in one embodiment of a shrink-fit type steel ball torque limiter coupling of this utility model;

[0031] Figure 16 for Figure 15 Schematic diagram of the cross-sectional structure of the middle BB.

[0032] Attachment numbers and their descriptions:

[0033] 1. Second connecting bolt; 2. Connecting plate; 3. Torque scale; 4. Positioning plate; 5. Shifting flange; 6. Connecting flange; 7. First connecting ring; 8. Protrusion; 9. First chuck; 10. Second chuck; 11. Second connecting ring; 12. Pressure ring; 13. Third connecting bolt; 14. Adjusting bolt; 15. Steel ball; 16. Bearing; 17. Disc spring; 18. Circular main body; 19. Rotating inner main body; 20. First cone; 21. First notch; 22. First connecting hole; 23. Second cone; 24. Second notch; 25. Second connecting hole; 26. 27. Elastic retaining ring; 28. Inner hole; 29. ​​Fourth connecting bolt hole; 30. First keyway; 31. Elastic retaining ring mounting groove; 32. First steel ball placement groove; 33. Steel ball mounting ring; 34. Second connecting bolt hole; 35. Protruding ring; 36. Second steel ball placement groove; 37. Connecting key; 38. First connecting bolt hole; 39. Fifth connecting bolt hole; 40. Second tapered hole; 41. Sixth connecting bolt hole; 42. Third steel ball placement groove; 43. Disc spring placement groove; 44. First connecting bolt; 45. Second bolt mounting hole; 46. Third connecting bolt hole. Detailed Implementation

[0034] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding of this utility model, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0035] Reference Figures 1 to 16This utility model provides a shrink-fit type steel ball torque limiter coupling, including a rotating inner body 19. A bearing 16 is fitted on the left side of the rotating inner body 19. A first connecting ring 7 is provided at the left end of the bearing 16. The right end of the inner wall of the first connecting ring 7 is fitted onto the left end of the outer wall of the bearing 16. A connecting flange 6 is provided at the right end of the bearing 16. The left end of the inner wall of the connecting flange 6 is fitted onto the right end of the outer wall of the bearing 16. A steel ball mounting ring 32 is provided on the rotating inner body 19 on the right side of the connecting flange 6. Multiple first steel ball placement grooves 31 are provided on the outer wall of the steel ball mounting ring 32. Steel balls 15 are placed in the first steel ball placement grooves 31. A convex ring 34 is provided on the right end face of the connecting flange 6. The right end face of ring 34 is provided with a plurality of second steel ball placement grooves 35 that cooperate with the steel ball 15. The left end of the steel ball 15 is located in the second steel ball placement groove 35. A displacement flange 5 is fitted on the rotating inner body 19 on the right side of the connecting flange 6. The inner side of the displacement flange 5 is provided with a third steel ball placement groove 41 that cooperates with the outer end of the steel ball 15. A butterfly spring placement groove 42 is provided on the right end face of the displacement flange 5. A butterfly spring 17 is placed in the butterfly spring placement groove 42. A positioning plate 4 is provided on the right side of the displacement flange 5. A first keyway 29 is provided on the outer wall of the right end of the rotating inner body 19. The positioning plate 4 is provided with a connecting key 36 that cooperates with the first keyway 29. A torque is provided on the right side of the positioning plate 4. The torque value dial 3 has a first bolt mounting hole. The positioning plate 4 has a plurality of second bolt mounting holes 44 evenly distributed. The first bolt mounting hole has an adjusting bolt 14, the left end of which is connected to one of the second bolt mounting holes 44. The rotating inner body 19 has an inner hole 27 that passes through the rotating inner body 19 from left to right. The right end of the inner hole 27 has a first conical hole with a left-small and right-large structure. The right side of the torque value dial 3 has a connecting plate 2. The left end of the connecting plate 2 has a first cone 20 that mates with the first conical hole. The right end face of the connecting plate 2 has a first connecting hole 22 that passes through to the left end face of the first cone 20. A plurality of first notches 21 are evenly provided on the inner wall of a connecting hole 22, extending to the outer end face of the first cone 20. A plurality of first claws 9 arranged in a circular pattern are provided on the left end face of the first connecting ring 7. A second connecting ring 11 is provided on the left side of the first connecting ring 7. A plurality of second claws 10 that cooperate with the first claws 9 are provided on the right end face of the second connecting ring 11. A plum blossom-shaped elastic body is provided between the first connecting ring 7 and the second connecting ring 11. The plum blossom-shaped elastic body includes a circular body 18 and a plurality of protrusions 8 evenly provided around the circular body 18. The protrusions 8 are distributed between the first claws 9 and the second claws 10. A plurality of first connecting bolt holes 37 are evenly provided on the left end face of the first connecting ring 7.The left end face of the connecting flange 6 is provided with a plurality of second connecting bolt holes 33 corresponding to the first connecting bolt holes 37. The first connecting bolt holes 37 are provided with first connecting bolts 43 that connect to the second connecting bolt holes 33. The left end face of the second connecting ring 11 is provided with a second cone 23. The right end face of the second connecting ring 11 is provided with a second connecting hole 25 extending to the left end face of the second cone. The inner wall of the second connecting hole 25 is evenly provided with a plurality of second notches 24 extending to the outer end face of the second cone 23. A pressure cap ring 12 is fitted onto the second cone 23. The right end face of the connecting plate 2... The end face has a circumferential array of multiple third connecting bolt holes 45. The right end face of the rotating inner body 19 has multiple fourth connecting bolt holes 28 that mate with the third connecting bolt holes 45. Each third connecting bolt hole 45 has a second connecting bolt 1 that connects to the fourth connecting bolt hole 28. The right end face of the second connecting ring 11 has multiple fifth connecting bolt holes 38. The right end face of the pressure ring 12 has a sixth connecting bolt hole 40 that mates with the fifth connecting bolt holes 38. Each fifth connecting bolt hole 38 has a third connecting bolt 13 that connects to the sixth connecting bolt hole 40.

[0036] This technical solution uses the first steel ball placement groove 31, the second steel ball placement groove 35, and the third steel ball placement groove 41 to collaboratively place the steel ball 15. In case of overload, slippage occurs between the connecting flange 6 and the displacement flange 5, causing the equipment to stop rotating and thus protecting the equipment. The torque value is displayed using a torque value dial 3. The torque value is set in a standardized manner with clear standards. The torque value dial 3 is scientifically set, and the torque value is specific and does not require conversion. This allows for accurate acquisition of the torque value, improving the performance of the coupling.

[0037] In this technical solution, the first connecting ring 7 and the first jaw 9 are integrally formed; the second connecting ring 11, the second jaw 10, and the second cone 23 are integrally formed; the connecting plate 2 and the first cone 20 are integrally formed; and the circular body 18 and multiple protrusions 8 are integrally formed. The plum blossom-shaped elastomer is made of high-strength polyurethane. The plum blossom-shaped elastomer made of high-strength polyurethane has the effects of wear resistance, oil resistance, large load-bearing capacity, long service life, and safety and reliability. When in use, the coupling operates stably and reliably, and has good vibration reduction, buffering, and electrical insulation performance. It has a large axial, radial, and angular compensation capacity.

[0038] Bearing 16 is a rolling bearing. The third steel ball placement groove 41 is an annular groove that mates with the steel ball 15. During operation, the first steel ball placement groove 31, the second steel ball placement groove 35, and the third steel ball placement groove 41 form a receiving cavity to accommodate the steel ball 15.

[0039] During operation: When the transmitted torque exceeds the set slippage torque (overload), steel ball 15 will leave the second steel ball placement groove 35, causing slippage between the connecting flange 6 and the shifting flange 5. At this time, the transmitted torque is reduced to a very small value. Simultaneously, steel ball 15 pushes the shifting flange 5 to move axially to the right, triggering a sensor or displacement switch, causing the sensor to output a signal. This signal can then be used to control the operation or cut off the power source, stopping the equipment from rotating and protecting it. After the overload is eliminated, steel ball 15 automatically resets under the action of the disc spring 17, connecting flange 6, and shifting flange 5, thus resuming normal rotation.

[0040] For example, in some embodiments, the inner wall of the pressure ring 12 is provided with a second tapered hole 39 that mates with the second cone 23. This facilitates the connection of shafts of different diameters using an expansion sleeve structure.

[0041] For example, in some embodiments, an elastic retaining ring 26 is provided on the outer wall of the left end of the rotating inner body 19. The elastic retaining ring 26 allows for quick assembly and disassembly of components, facilitating replacement and maintenance.

[0042] For example, in some embodiments, an elastic retaining ring mounting groove 30 is provided on the outer wall of the left end of the rotating inner body 19, and the elastic retaining ring 26 is mounted on the elastic retaining ring mounting groove 30. This makes the connection of the elastic retaining ring 26 more secure. During installation, the positioning plate 4, the butterfly spring 17, the displacement flange 5, the steel ball 15, the connecting flange 6, and the bearing 16 can be sleeved onto the rotating inner body 19 from the left end, and then limited and fixed by the elastic retaining ring 26. This operation is convenient for installation and maintenance.

[0043] For example, in some embodiments, the first keyway 29 consists of two corresponding ends located on the outer wall of the rotating inner body 19, and the connecting key 36 consists of two keys that mate with the two first keyways 29. This makes the connection between the rotating inner body 19 and the torque value dial 3 more stable.

[0044] For example, in some embodiments, the outer end of the left end face of the positioning plate 4 is a right-sloping surface. This allows for a gap between the second bolt mounting hole 44 and the displacement flange 5, facilitating observation of the tightening of the adjusting bolt 14 and preventing the adjusting bolt 14 from directly contacting the displacement flange 5 and causing any impact.

[0045] For example, in some embodiments, there are twenty-four second bolt mounting holes 44. This facilitates adjustment of the scale position on the torque value dial 3.

[0046] For example, in some embodiments, the steel ball mounting ring 32 is integrally formed with the rotating inner body 19. This makes the overall structure more stable.

[0047] In summary, this utility model employs a first, second, and third steel ball placement groove to collaboratively place steel balls. Under overload conditions, slippage occurs between the connecting flange and the displacement flange, causing the equipment to stop rotating and thus protecting it. Furthermore, the torque value is displayed on a torque scale with standardized and clearly defined settings. The scientifically designed torque scale provides precise torque values ​​without conversion, ensuring accurate torque readings and improving the coupling's performance.

[0048] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, and these variations still fall within the protection scope of this utility model.

Claims

1. A type of expansion sleeve-type steel ball torque limiter coupling, characterized in that, The device includes a rotating inner body. A bearing is fitted on the left side of the rotating inner body. A first connecting ring is located at the left end of the bearing. The right end of the inner wall of the first connecting ring is fitted onto the left end of the outer wall of the bearing. A connecting flange is located at the right end of the bearing. The left end of the inner wall of the connecting flange is fitted onto the right end of the outer wall of the bearing. A steel ball mounting ring is located on the rotating inner body to the right of the connecting flange. Multiple first steel ball placement grooves are provided on the outer wall of the steel ball mounting ring, and steel balls are placed in these grooves. A protruding ring is located on the right end face of the connecting flange. Multiple second steel ball placement grooves that mate with the steel balls are provided on the right end face of the protruding ring. The left end of each steel ball is located within a second steel ball placement groove. The rotating inner body to the right of the connecting flange... A displacement flange is fitted, with a third steel ball placement groove on the inner side of the displacement flange that mates with the outer end of the steel ball. A butterfly spring placement groove is provided on the right end face of the displacement flange, and a butterfly spring is placed in the butterfly spring placement groove. A positioning plate is provided on the right side of the displacement flange. A first keyway is provided on the outer wall of the right end of the rotating inner body. The positioning plate is provided with a connecting key that mates with the first keyway. A torque value scale is provided on the right side of the positioning plate, and a first bolt mounting hole is provided on the torque value scale. A plurality of second bolt mounting holes are evenly provided on the positioning plate. An adjusting bolt is provided on the first bolt mounting hole, and the left end of the adjusting bolt is connected to one of the second bolt mounting holes. The rotating inner body has a through-hole on both sides. The main body has an inner hole, with a first conical hole at its right end. This first conical hole has a left-smaller, right-larger structure. A connecting plate is located on the right side of the torque scale. A first cone-shaped part mates with the first conical hole at the left end of the connecting plate. A first connecting hole extending to the left end face of the first cone-shaped part is located on the right end face of the connecting plate. Multiple first notches extending to the outer end face of the first cone-shaped part are evenly distributed on the inner wall of the first connecting hole. Multiple circumferentially arranged first claws are located on the left end face of the first connecting ring. A second connecting ring is located on the left side of the first connecting ring. Multiple second claws mate with the first claws are located on the right end face of the second connecting ring. A plum blossom-shaped elastic body is located between the first connecting ring and the second connecting ring. The flower-shaped elastomer includes a circular body and a plurality of protrusions evenly distributed around the periphery of the circular body. The protrusions are distributed between the first claw and the second claw. A plurality of first connecting bolt holes are evenly distributed on the left end face of the first connecting ring. A plurality of second connecting bolt holes corresponding to the first connecting bolt holes are provided on the left end face of the connecting flange. First connecting bolts connecting to the second connecting bolt holes are provided on the first connecting bolt holes. A second cone is provided on the left end face of the second connecting ring. A second connecting hole penetrating to the left end face of the second cone is provided on the right end face of the second connecting ring. A plurality of second notches penetrating to the outer end face of the second cone are evenly distributed on the inner wall of the second connecting hole. A pressure cap ring is fitted onto the second cone.The right end face of the connecting plate has a circumferential array of multiple third connecting bolt holes. The right end face of the rotating inner body has multiple fourth connecting bolt holes that mate with the third connecting bolt holes. Second connecting bolts are installed in the third connecting bolt holes to connect with the fourth connecting bolt holes. The right end face of the second connecting ring has multiple fifth connecting bolt holes. The right end face of the pressure ring has a sixth connecting bolt hole that mates with the fifth connecting bolt holes. Third connecting bolts are installed in the fifth connecting bolt holes to connect with the sixth connecting bolt holes.

2. The expansion sleeve type steel ball torque limiter coupling according to claim 1, characterized in that, The inner wall of the pressure ring is provided with a second conical hole that mates with the second cone.

3. The expansion sleeve type steel ball torque limiter coupling according to claim 1, characterized in that, An elastic retaining ring is provided on the outer wall of the left end of the rotating inner body.

4. The expansion sleeve type steel ball torque limiter coupling according to claim 3, characterized in that, The outer wall of the left end of the rotating inner body is provided with an elastic retaining ring mounting groove, and the elastic retaining ring is mounted on the elastic retaining ring mounting groove.

5. The expansion sleeve type steel ball torque limiter coupling according to claim 1, characterized in that, The first keyway consists of two keyways located at corresponding ends on the outer wall of the rotating inner body, and the connecting key consists of two keyways that mate with the two first keyways.

6. The expansion sleeve type steel ball torque limiter coupling according to claim 1, characterized in that, The outer end of the left end face of the positioning plate is a rightward inclined surface.

7. The expansion sleeve type steel ball torque limiter coupling according to claim 1, characterized in that, The second bolt mounting hole has twenty-four holes.

8. The expansion sleeve type steel ball torque limiter coupling according to claim 1, characterized in that, The steel ball mounting ring is integrally formed with the rotating inner body.

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